Signal

Messenger App

Basic info

Signal is a messaging app for Android and iPhone. The app is a secure alternative to other messaging apps like WhatsApp, WeChat, Line, Facebook Messenger, Google Talk and Threma. It can be used for both messaging and calling. Signal provides security by encrypting voice calls and instant messages in transit (end-to-end encryption) and ensures that past communications are secure even if encryption keys are stolen (forward secrecy).

Info

Tool type: Messenger AppEase of use: Signal is easy to install, configure, maintain and troubleshoot.Open source: YesEncryption support: Yes, end-to-end encryption and forward secrecy.Benefits: Signal encrypts voice calls and instant messages in transit (end-to-end encryption) and ensures that past communications are secure even if encryption keys are stolen (forward secrecy). It also includes a built-in mechanism for verifying that no man-in-the-middle attack has occurred.Limitations: Signal is linked to your phone number and requiers access to your address book. The app uses Google push, a software that requires you to run Google on your phone.Independent code audited: YesCost: Free of chargeLanguages: EnglishCompatibility: requires Android 4.1 or later and iOS 8.0 or laterVersion as of this writing: Android 3.13.1, iOS 2.2Developed by: Open Whisper SystemsWebsite:Open Whisper Systems